Phase transition in nickel sulphide nanoparticles

IF 1.3 4区材料科学 Q3 CRYSTALLOGRAPHY

Phase Transitions Pub Date : 2023-03-15 DOI:10.1080/01411594.2023.2184361

Moly M. Rose, R. S. Christy, T. A. Benitta, J. T. Thanka Kumaran

引用次数: 0

Abstract

ABSTRACT The NiS nanoparticles were synthesised by the microwave-assisted chemical precipitation method. The XRD pattern shows that the prepared NiS nanoparticles have an orthorhombic structure. The SEM image of NiS nanoparticles confirms the nanostructure. The energy-dispersive X-ray analysis confirms the existence of Nickel and Sulphur in a proper ratio. The D.C. electrical resistances were measured in the temperature range 300 K–500 K. Oscillations were found in the temperature resistance curve of Nickel Sulphide nanoparticles on repeated heating and cooling due to phase transition. The XRD pattern of the powdered form of the NiS pellet used for the resistance measurement also confirms this phase transition. The two forms of UV and PL spectra of NiS nanoparticles were studied.

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硫化镍纳米颗粒的相变

采用微波辅助化学沉淀法合成纳米NiS。XRD谱图表明制备的NiS纳米粒子具有正交结构。NiS纳米颗粒的SEM图像证实了其纳米结构。能量色散x射线分析证实了镍和硫以适当的比例存在。在300 ~ 500 K的温度范围内测量了直流电阻。在反复加热和冷却的过程中，硫化镍纳米颗粒的耐温曲线由于相变而出现振荡。用于电阻测量的NiS颗粒的粉末形式的XRD图也证实了这种相变。研究了NiS纳米粒子的紫外光谱和PL光谱。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Phase Transitions 物理-晶体学

CiteScore

3.00

自引率

6.20%

发文量

审稿时长

1.4 months

期刊介绍： Phase Transitions is the only journal devoted exclusively to this important subject. It provides a focus for papers on most aspects of phase transitions in condensed matter. Although emphasis is placed primarily on experimental work, theoretical papers are welcome if they have some bearing on experimental results. The areas of interest include: -structural phase transitions (ferroelectric, ferroelastic, multiferroic, order-disorder, Jahn-Teller, etc.) under a range of external parameters (temperature, pressure, strain, electric/magnetic fields, etc.) -geophysical phase transitions -metal-insulator phase transitions -superconducting and superfluid transitions -magnetic phase transitions -critical phenomena and physical properties at phase transitions -liquid crystals -technological applications of phase transitions -quantum phase transitions Phase Transitions publishes both research papers and invited articles devoted to special topics. Major review papers are particularly welcome. A further emphasis of the journal is the publication of a selected number of small workshops, which are at the forefront of their field.